How to manage deals declined by my own ? New feature for creating final non-profit stage ?

How to manage deals declined by my own ? New feature for creating final non-profit stage ?

Hi,

I would like to record deal that i finally declined by my own.
They are neither won, neither lost by customer decision.

I add a new stage but it is not very good because it is not a final stage.

Would it be possible to add the feature to create further final stage (in this case with a notion of non-profit) ?

Thanks